微型钻头端刃侧刃缺陷的全景式视觉检测技术

Panoramic visual inspection technology for defects of end edge and side edge of micro drill

中文关键词  微型钻头  内锥全反射镜  机器视觉  视觉检测  图像拼接  缺陷检测

英文关键词  micro drill bit  internal cone total reflection mirror  machine vision  visual inspection  image stitching  defect inspection

中文摘要

      在微钻生产中采用机器视觉方法进行缺陷检测时, 其难点在于一次拍摄就获得微钻侧刃的完整的、高分辨 率的图像. 当采用高倍率光学镜头时, 又产生视野与检测范围的矛盾. 为解决该矛盾, 本文创造性地设计了一套内 锥镜面反射成像装置, 既可获得微钻端刃的清晰图像, 又可获得整个微钻侧刃的清晰图像, 使得微钻缺陷的全自动 视觉检测成为可能. 试验结果表明, 本文研发的微钻全景式视觉检测系统, 能够满足微钻生产中的自动化检测需求.

英文摘要

      When machine vision is used for defect detection in the production of micro-drills, the difficulty lies in obtaining a complete, high-resolution image of the side edge of the micro-drill with one shot. When a high-magnification optical lens is used, there is a contradiction between the field of view and the detection range. In order to solve this contradiction, this paper creatively designed a set of inner cone mirror reflection imaging devices, which can obtain clear images of the end edge of the micro-drill and the entire side edge of the micro-drill, enabling the automatic visual inspection of the micro-drill become possible. The test results show that the micro-drill panoramic visual inspection system developed in this paper can meet the needs of automated inspection in the production of micro-drills. The test results show that the micro-drill panoramic visual inspection system developed in this paper can meet the needs of automated inspection in the production of micro-drills.